NTT Makes Renewed Overseas Push

Japanese Telecom Firm Boosts Deals Abroad

TOKYO—More than a decade after a disastrous foray into investments abroad, Japan's biggest telecommunications group is trying to grow overseas again.

As part of a renewed overseas push, Nippon Telegraph & Telephone Corp. is spending billions of dollars on acquisitions, mostly in the U.S. It is establishing a beachhead in Silicon Valley, opening a research center and showroom, poaching engineers and joining with local companies to make the information-technology systems it designs more user-friendly. Last year alone,...